Process of making zinc sulfo-amid.



UNITED STATES PATENTOFFICE.

SAM UEL PEAOOCK, OF CHICAGO, ILLINOIS, ASSIGNOR TO THE ,QOUTH ERN ELECTRO- CHEMICAL COMPANY, OF NEW YORK, N. Y., A CORPORATION OF NEV JERSEY.

PROCESS OF MAKING ZINC SULFO-AMID.

No Drawing.

Specification of Letters Patent. Patented Nov, 21, 1911 application filed July 12, 1910. Serial No. 571,615.

To all whom it may concern.-

Be it known that I, SAMUEL PEAoooK, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and use ful Improvements in Methods of Producing Sulfo-Amid and By-Products; and I do hereby declare the following to be a full,

cle'ar, a nd exact description of the invention, such as. will enable others skilled in the art to which it appertains to make and use the same. L

This invention relates to a process of producing zinc-sulfo-amids and by-products, and has for itsobject the manufacture of these substances in a manner more expedinot as yet been able to determine the exact chemical composition of this compound, but the chemical reactions involved are believed to be substantially as follows, when for example .zinc sulfid is. employed Nor have I been able as yet to determine the exact chemical composition of the sulfur nitrid produced by this process, but zincsulfo-ainid is clearly the product of the reaction, as will appear below. When this product is made in an electric furnace, however, this amid is the product of the substitution of zinc for hydrogen, according to the following equation.

S(NH),-}-2Zn=S(ZnN,),+H, The sulfur nitrid produced is believed to be N 8, for it forms ammonium sulfate when treated with water. J

The furnace reactions are invarlably 1ncomplete, and therefore give rise to very complex substances whose chemical compoin the laboratory. Commercially, however, the products of the reactions are valuable, because a nitrogen fixation substance is produced by means of heating sulfids in an atmosphere of nitrogen. The zincsulfoamid isclearly present, for when it is exposed in the soil or is subjected to the action of water combined nitrogen in the form of ammonia makes itself manifest Which is a form very desirable as a plant food, and this compound also is useful in other industries in. which ammonia is desired.

It is evident that those skilled in the art may vary the details of my process without departing from the spirit of my invention, and therefore I do not wish to be limited to such features except as may be required by the claims.

What I claim is:

1. The process of producing zinc-sulfuamids which consists in subjecting a zinc perature suflicient to cause a zinc-sulfo-amid to be formed, and in suitably recovering said amid, substantially as described.

2. The process of producing zinc-sulfosubjecting a zinc sulfid in an atmosphere of nitrogen to a temperature sufficient to cause a reaction between said sulfid and said nitrogen, and in suitably separating out the products of the reaction, substantially as described.

3. The process of producing zinc-sulfoamids and sulfur nitrids which consists in subjecting a sulfid of zinc in an atmosphere of nitrogen to a temperature above 800 (1., to cause a reaction between said sulfid and said nitrogen, and in suitably separating out theproducts of the reaction, substantially as described.

In testimony whereof, I aflix my signature, in presence of two witnesses.

SAMUEL PEACOCK. \Vitnesses:

R. J. BOYLAN,

T. A. Wrrnun'sroon.

sulfid in an atmosphere of nitrogen't-o a tem-.

amids and sulfur nitrids which consists insitions are exceedingly difiicult to determine 

